20301898016

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{280351}}^1$

素因数の和:280465

約数の個数: 48

約数和(自身を含む): 41824032768

約数和(自身を除く): 21522134752

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 73, 124, 146, 248, 292, 496, 584, 992, 1168, 2263, 2336, 4526, 9052, 18104, 36208, 72416, 280351, 560702, 1121404, 2242808, 4485616, 8690881, 8971232, 17381762, 20465623, 34763524, 40931246, 69527048, 81862492, 139054096, 163724984, 278108192, 327449968, 634434313, 654899936, 1268868626, 2537737252, 5075474504, 10150949008, 20301898016]

約数ペア:

[(1, 20301898016), (2, 10150949008), (4, 5075474504), (8, 2537737252), (16, 1268868626), (31, 654899936), (32, 634434313), (62, 327449968), (73, 278108192), (124, 163724984), (146, 139054096), (248, 81862492), (292, 69527048), (496, 40931246), (584, 34763524), (992, 20465623), (1168, 17381762), (2263, 8971232), (2336, 8690881), (4526, 4485616), (9052, 2242808), (18104, 1121404), (36208, 560702), (72416, 280351)]